forked from D-Net/dnet-hadoop
273 lines
8.4 KiB
Java
273 lines
8.4 KiB
Java
|
|
package eu.dnetlib.doiboost.orcid.util;
|
|
|
|
import static eu.dnetlib.dhp.utils.DHPUtils.MAPPER;
|
|
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.net.*;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
|
|
import org.apache.commons.io.IOUtils;
|
|
import org.apache.commons.lang3.math.NumberUtils;
|
|
import org.apache.http.HttpHeaders;
|
|
import org.slf4j.Logger;
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
import eu.dnetlib.dhp.common.collection.CollectorException;
|
|
import eu.dnetlib.dhp.common.collection.HttpClientParams;
|
|
|
|
/**
|
|
* Derived from eu.dnetlib.dhp.common.collection.HttpConnector2 with custom report and Bearer auth
|
|
*
|
|
* @author enrico
|
|
*/
|
|
public class MultiAttemptsHttpConnector {
|
|
|
|
private static final Logger log = LoggerFactory.getLogger(MultiAttemptsHttpConnector.class);
|
|
|
|
private HttpClientParams clientParams;
|
|
|
|
private String responseType = null;
|
|
|
|
private static final String userAgent = "Mozilla/5.0 (compatible; OAI; +http://www.openaire.eu)";
|
|
|
|
private String authToken = "";
|
|
private String acceptHeaderValue = "";
|
|
private String authMethod = "";
|
|
public final static String BEARER = "BEARER";
|
|
|
|
public MultiAttemptsHttpConnector() {
|
|
this(new HttpClientParams());
|
|
}
|
|
|
|
public MultiAttemptsHttpConnector(HttpClientParams clientParams) {
|
|
this.clientParams = clientParams;
|
|
CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
|
|
}
|
|
|
|
/**
|
|
* Given the URL returns the content via HTTP GET
|
|
*
|
|
* @param requestUrl the URL
|
|
* @param report the list of errors
|
|
* @return the content of the downloaded resource
|
|
* @throws CollectorException when retrying more than maxNumberOfRetry times
|
|
*/
|
|
public String getInputSource(final String requestUrl, DownloadsReport report)
|
|
throws CollectorException {
|
|
return attemptDownloadAsString(requestUrl, 1, report);
|
|
}
|
|
|
|
private String attemptDownloadAsString(final String requestUrl, final int retryNumber,
|
|
final DownloadsReport report) throws CollectorException {
|
|
|
|
try (InputStream s = attemptDownload(requestUrl, retryNumber, report)) {
|
|
return IOUtils.toString(s);
|
|
} catch (IOException e) {
|
|
log.error(e.getMessage(), e);
|
|
throw new CollectorException(e);
|
|
}
|
|
}
|
|
|
|
private InputStream attemptDownload(final String requestUrl, final int retryNumber,
|
|
final DownloadsReport report) throws CollectorException, IOException {
|
|
|
|
if (retryNumber > getClientParams().getMaxNumberOfRetry()) {
|
|
final String msg = String
|
|
.format(
|
|
"Max number of retries (%s/%s) exceeded, failing.",
|
|
retryNumber, getClientParams().getMaxNumberOfRetry());
|
|
log.error(msg);
|
|
throw new CollectorException(msg);
|
|
}
|
|
|
|
log.info("Request attempt {} [{}]", retryNumber, requestUrl);
|
|
|
|
InputStream input = null;
|
|
|
|
try {
|
|
if (getClientParams().getRequestDelay() > 0) {
|
|
backoffAndSleep(getClientParams().getRequestDelay());
|
|
}
|
|
final HttpURLConnection urlConn = (HttpURLConnection) new URL(requestUrl).openConnection();
|
|
urlConn.setInstanceFollowRedirects(false);
|
|
urlConn.setReadTimeout(getClientParams().getReadTimeOut() * 1000);
|
|
urlConn.setConnectTimeout(getClientParams().getConnectTimeOut() * 1000);
|
|
urlConn.addRequestProperty(HttpHeaders.USER_AGENT, userAgent);
|
|
|
|
if (!getAcceptHeaderValue().isEmpty()) {
|
|
urlConn.addRequestProperty(HttpHeaders.ACCEPT, getAcceptHeaderValue());
|
|
}
|
|
if (!getAuthToken().isEmpty() && getAuthMethod().equals(BEARER)) {
|
|
urlConn.addRequestProperty(HttpHeaders.AUTHORIZATION, String.format("Bearer %s", getAuthToken()));
|
|
}
|
|
|
|
if (log.isDebugEnabled()) {
|
|
logHeaderFields(urlConn);
|
|
}
|
|
|
|
int retryAfter = obtainRetryAfter(urlConn.getHeaderFields());
|
|
if (is2xx(urlConn.getResponseCode())) {
|
|
input = urlConn.getInputStream();
|
|
responseType = urlConn.getContentType();
|
|
return input;
|
|
}
|
|
if (is3xx(urlConn.getResponseCode())) {
|
|
// REDIRECTS
|
|
final String newUrl = obtainNewLocation(urlConn.getHeaderFields());
|
|
log.info("The requested url has been moved to {}", newUrl);
|
|
report
|
|
.put(
|
|
urlConn.getResponseCode(),
|
|
String.format("Moved to: %s", newUrl));
|
|
urlConn.disconnect();
|
|
if (retryAfter > 0) {
|
|
backoffAndSleep(retryAfter);
|
|
}
|
|
return attemptDownload(newUrl, retryNumber + 1, report);
|
|
}
|
|
if (is4xx(urlConn.getResponseCode()) || is5xx(urlConn.getResponseCode())) {
|
|
switch (urlConn.getResponseCode()) {
|
|
case HttpURLConnection.HTTP_NOT_FOUND:
|
|
case HttpURLConnection.HTTP_BAD_GATEWAY:
|
|
case HttpURLConnection.HTTP_UNAVAILABLE:
|
|
case HttpURLConnection.HTTP_GATEWAY_TIMEOUT:
|
|
if (retryAfter > 0) {
|
|
log
|
|
.warn(
|
|
"{} - waiting and repeating request after suggested retry-after {} sec.",
|
|
requestUrl, retryAfter);
|
|
backoffAndSleep(retryAfter * 1000);
|
|
} else {
|
|
log
|
|
.warn(
|
|
"{} - waiting and repeating request after default delay of {} sec.",
|
|
requestUrl, getClientParams().getRetryDelay());
|
|
backoffAndSleep(retryNumber * getClientParams().getRetryDelay() * 1000);
|
|
}
|
|
report.put(urlConn.getResponseCode(), requestUrl);
|
|
urlConn.disconnect();
|
|
return attemptDownload(requestUrl, retryNumber + 1, report);
|
|
default:
|
|
report
|
|
.put(
|
|
urlConn.getResponseCode(),
|
|
String
|
|
.format(
|
|
"%s Error: %s", requestUrl, urlConn.getResponseMessage()));
|
|
throw new CollectorException(urlConn.getResponseCode() + " error " + report);
|
|
}
|
|
}
|
|
throw new CollectorException(
|
|
String
|
|
.format(
|
|
"Unexpected status code: %s errors: %s", urlConn.getResponseCode(),
|
|
MAPPER.writeValueAsString(report)));
|
|
} catch (MalformedURLException | UnknownHostException e) {
|
|
log.error(e.getMessage(), e);
|
|
report.put(-2, e.getMessage());
|
|
throw new CollectorException(e.getMessage(), e);
|
|
} catch (SocketTimeoutException | SocketException e) {
|
|
log.error(e.getMessage(), e);
|
|
report.put(-3, e.getMessage());
|
|
backoffAndSleep(getClientParams().getRetryDelay() * retryNumber * 1000);
|
|
return attemptDownload(requestUrl, retryNumber + 1, report);
|
|
}
|
|
}
|
|
|
|
private void logHeaderFields(final HttpURLConnection urlConn) throws IOException {
|
|
log.debug("StatusCode: {}", urlConn.getResponseMessage());
|
|
|
|
for (Map.Entry<String, List<String>> e : urlConn.getHeaderFields().entrySet()) {
|
|
if (e.getKey() != null) {
|
|
for (String v : e.getValue()) {
|
|
log.debug(" key: {} - value: {}", e.getKey(), v);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private void backoffAndSleep(int sleepTimeMs) throws CollectorException {
|
|
log.info("I'm going to sleep for {}ms", sleepTimeMs);
|
|
try {
|
|
Thread.sleep(sleepTimeMs);
|
|
} catch (InterruptedException e) {
|
|
log.error(e.getMessage(), e);
|
|
throw new CollectorException(e);
|
|
}
|
|
}
|
|
|
|
private int obtainRetryAfter(final Map<String, List<String>> headerMap) {
|
|
for (String key : headerMap.keySet()) {
|
|
if ((key != null) && key.equalsIgnoreCase(HttpHeaders.RETRY_AFTER) && (!headerMap.get(key).isEmpty())
|
|
&& NumberUtils.isCreatable(headerMap.get(key).get(0))) {
|
|
return Integer.parseInt(headerMap.get(key).get(0)) + 10;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
private String obtainNewLocation(final Map<String, List<String>> headerMap) throws CollectorException {
|
|
for (String key : headerMap.keySet()) {
|
|
if ((key != null) && key.equalsIgnoreCase(HttpHeaders.LOCATION) && (headerMap.get(key).size() > 0)) {
|
|
return headerMap.get(key).get(0);
|
|
}
|
|
}
|
|
throw new CollectorException("The requested url has been MOVED, but 'location' param is MISSING");
|
|
}
|
|
|
|
private boolean is2xx(final int statusCode) {
|
|
return statusCode >= 200 && statusCode <= 299;
|
|
}
|
|
|
|
private boolean is4xx(final int statusCode) {
|
|
return statusCode >= 400 && statusCode <= 499;
|
|
}
|
|
|
|
private boolean is3xx(final int statusCode) {
|
|
return statusCode >= 300 && statusCode <= 399;
|
|
}
|
|
|
|
private boolean is5xx(final int statusCode) {
|
|
return statusCode >= 500 && statusCode <= 599;
|
|
}
|
|
|
|
public String getResponseType() {
|
|
return responseType;
|
|
}
|
|
|
|
public HttpClientParams getClientParams() {
|
|
return clientParams;
|
|
}
|
|
|
|
public void setClientParams(HttpClientParams clientParams) {
|
|
this.clientParams = clientParams;
|
|
}
|
|
|
|
public void setAuthToken(String authToken) {
|
|
this.authToken = authToken;
|
|
}
|
|
|
|
private String getAuthToken() {
|
|
return authToken;
|
|
}
|
|
|
|
public String getAcceptHeaderValue() {
|
|
return acceptHeaderValue;
|
|
}
|
|
|
|
public void setAcceptHeaderValue(String acceptHeaderValue) {
|
|
this.acceptHeaderValue = acceptHeaderValue;
|
|
}
|
|
|
|
public String getAuthMethod() {
|
|
return authMethod;
|
|
}
|
|
|
|
public void setAuthMethod(String authMethod) {
|
|
this.authMethod = authMethod;
|
|
}
|
|
}
|